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Phase Diagram of Quaternary System NaBr–KBr–CaBr2–H2O at 323 K

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Abstract

The phase equilibria in the system NaBr–KBr–CaBr2–H2O at 323 K were studied using the isothermal dissolution equilibrium method. Using the experimental solubilities of salts data, phase diagram was constructed. The phase diagram have two invariant points, five univariant curves, and four crystallization fields. The equilibrium solid phases in the system are NaBr, NaBr · 2H2O, KBr, and CaBr2 · 4H2O. The solubilities of salts in the system at 323 K were calculated by Pitzer’s equation. There is shown that the calculated solubilities agree well with experimental data.

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Authors and Affiliations

  1. College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, PR China

    Rui-Zhi Cui, Wei Wang, Lei Yang & Shi-Hua Sang

  2. Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions, Chengdu, 610059, PR China

    Rui-Zhi Cui, Wei Wang, Lei Yang & Shi-Hua Sang

Authors
  1. Rui-Zhi Cui
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  2. Wei Wang
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  3. Lei Yang
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  4. Shi-Hua Sang
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Correspondence to Shi-Hua Sang.

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Cui, RZ., Wang, W., Yang, L. et al. Phase Diagram of Quaternary System NaBr–KBr–CaBr2–H2O at 323 K. Russ. J. Phys. Chem. 92, 475–481 (2018). https://doi.org/10.1134/S003602441803024X

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  • DOI: https://doi.org/10.1134/S003602441803024X

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